Agreement between the visual analogue scale (VAS) and the dysfunctional voiding scoring system (DVSS) in the post-treatment evaluation of electrical nerve stimulation in children and adolescents with overactive bladder

The present study found moderate agreement between the DVSS and the VAS, and moderate agreement between VAS scores when the instrument was applied by two different professionals. Although both tools appear to be important, and possibly complementary, a DVSS score of zero precludes the need to apply the VAS.